It's up to you, but if you choose to buy gold.. you might end up selling it again or find yourself at the nearest pawnshop, or if you love collecting gold then it can juts put it in a much secure area of your house. ahaha
But when you choose bitcoin, then... there is a great possibility that you'll get much more than you have invested. It's just a matter of patient, hard-wok, and strategies.
There are times when the value of gold rises exponentially and this is due to terrorist atracks and major financial crisis and during this time in the world, this happens a lot and it rises the value of gold very high and also its a more stable investment compared to bitcoin.